Hints： 只聽寫例句。前面的單詞不用聽寫。
Advocates of organic foods frequently proclaim that such products are safer and more nutritious than others.
Advocates of organic foods frequently proclaim proclaim that such products are safer and more nutritious than others. 有機食品的擁護者常常宣稱這種產(chǎn)品比其他產(chǎn)品更安全，更有營養(yǎng)。 ——譯文來自: 節(jié)能降耗